Sounds like she had some kind of violent allergic reaction to the drink or had taken some sedatives or other medications that might have caused a bad reaction. Or maybe just before the flight she drank a whole bunch and it just hadn't hit her yet. I can't see a single drink doing that, even for someone with a phobia or trauma. Hope that if it was something she had no control over, they'll at least take that into account. But if it was a mix of sedatives or she really was that drunk, then yeah, totally throw the book at her.